Turbo and Intercooler information

[cadman]

Yesterday was spent pulling the 7M-GTE out of my 88 Supra, and today I pulled everything off to get the motor ready to send into the shop. Head work, forged pistons, peened rods, polished crank and all the normal stuff. I won't bore you with all those details

This progress pushes me to finally make a decision about my turbo and intercooler. I have read many posts about intercoolers, and turbos, so without making this post too long, lets get to the details.

Goal: 350RWHP to 400RWHP peak. 400lb. ft. torque give or take. Main idea is to have as much HP through as much of the RPM as I can. I don't want it to peak like a heart monitor... I want power that I can use, (from 3000 to 6500)

Research:
Turbonetics. T04B STG5 turbo, Part#11016 68AR <=== Does anyone have anything good or bad to say about this turbo? I'd like to know what you think of it, or if there is a better choice out there.
Manifold Part# 30527 for the 7M-GTE.

Driftmotion.com. Spearco Style Intercooler. 2.25" IC piping kit. <=== I've read some good things about this intercooler here on site. If anyone has any better ideas, or information I should know on this set-up, please let me know, thanks.

There is so much good information on this site, it would take me a long time to go through it. Any ideas, or information regarding a build like this would be greatly appriciated. From reading what I have, I see a lot of very good ideas here. Thank you for your time.
Allen.

 

[Reign_Maker]

350-400hp? Upgrade your CT26 to a 57 trim or 60-1... Get a walbro fuel pump, 550cc injectors and a Maft Pro... If you dont wanna go Maft, get a lexus afm and an safc2... Good tune and you will be all over 350-400hp... I would even say your stock fmic would be fine, but I'd replace the piping with a good set of hard pipes... Either buy a set, or have some bent/made...

 

[oscolivar1]

ebay IC are cheap and is good quality as they are the only thing i trust as far as ebay performance.

 

[billspreston01]

I second what reign_maker said. A 60-1 ct26 (I don't know if there's still a bb upgrade option out there) sounds like a good option for you. Should spool real quick and make the power you're looking for.

 

[cadman]

350-400hp? Upgrade your CT26 to a 57 trim or 60-1... Get a walbro fuel pump, 550cc injectors and a Maft Pro... If you dont wanna go Maft, get a lexus afm and an safc2... Good tune and you will be all over 350-400hp... I would even say your stock fmic would be fine, but I'd replace the piping with a good set of hard pipes... Either buy a set, or have some bent/made...

Thanks for the info. Sounds like you're tricking the computer into flowing more fuel and air. Or at least making the computer think that there isn't as much air flowing as there really is. Then it can flow more fuel.

But I guess that's like pushing it almost to it's limits, instead of building it and keeping the power well within the limites of the motor. If I build the motor for 600HP, then run at 400, my thinking is that the motor is more reliable that way? I know those are really good ideas, I've heard of them working very well for a long time. Thanks!

 

[MDCmotorsports]

350-400hp? Upgrade your CT26 to a 57 trim or 60-1... Get a walbro fuel pump, 550cc injectors and a Maft Pro... If you dont wanna go Maft, get a lexus afm and an safc2... Good tune and you will be all over 350-400hp... I would even say your stock fmic would be fine, but I'd replace the piping with a good set of hard pipes... Either buy a set, or have some bent/made...

I third what Jake has stated.

The stock fmic is good for 400hp.

 

[Mr.PFloyd]

Rule of thumb is always overbuild, just in case. so yep, it should be more reliable, depending on which components you use determining overall life span of the engine down the road.

 

[s383mmber1]

550's
maf-t pro
57 trim
wideband
17 PSI
BIC DDP
3.5 exhaust
spearco IC w/hardpipes


Reliable 400 horses.

 

[cadman]

Rule of thumb is always overbuild, just in case. so yep, it should be more reliable, depending on which components you use determining overall life span of the engine down the road.

That is my idea, and I am not trying to say that anyone has had a bad idea yet, they're all great! I just like to overbuild for reliability so I have no trouble with it.

The turbo idea I posted is just to make sure I'm not overworking a turbo that is only meant for 8 to 12 PSI. (I know a stock CT-26 is good for more than that, but why stress out an old turbo when I can get something that was build to run 16 psi?) I also want the option of turning up the boost at times for a little extra power.

The intercooler idea was because I'd heard putting too much preasure in a stock IC could be trouble. And yes, it will handle a lot (400hp) but a Spearco that has been preasure tested to 5 bar is more reliable.

Am I just trying to do too much?

 

[s383mmber1]

Am I just trying to do too much?

Not at all. Most of us are fairly tight on a budget, so over building seems pointless.

But if youve got the money,

why the hell not!?!?

 

[Reign_Maker]

Cadman, if you go with a lexus afm, it allows 25% more air to be metered in, and upgrading to 550cc injectors over the stock 440cc injectors is allowing 25% more fuel, so you arent really tricking the ecu because you have increased the air and fuel in the same percentage, so its VERY reliable... The SAFC2 will allow you to tweak the air fuel curve, its pretty easy to tune...

And like William said, definatly get a good 3" down pipe, and I dont know if I'd go with a 3.5" exhaust for only 400hp, but definately a 3"...

 

[cadman]

Not at all. Most of us are fairly tight on a budget, so over building seems pointless.

But if youve got the money,

why the hell not!?!?

Well see, that's why I love this site, if I want to save money, you guys have so many ways to do so! It's so much better to pick and choose where I want to put my money, and where I want to save it. So this is really great information guys.

Just something that might help you guys help me... I wanted to buy a new car. But I didn't want to spend the 30k then drive it off the lot only to loose 7k in value right off the top. I had this Supra, I own it, why not make IT my new car. So reliability is a really big thing for me.

I stopped driving my Supra because when I checked the oil last, it didn't look right. I drained the oil, and there was a tiny... tiny bit of water in it. Sure enough, BHG, but not bad. Just starting. So, I could a) replace the HG, and do the bare minimum to get 400hp, or make the motor like new and have something I can enjoy driving for another 200k miles.

So I want information on what has worked, what has been tried. Trust me, I've been looking things up on this site for the past 3 hours and I'm like... overwelmed with information at this point.

 

[cadman]

Cadman, if you go with a lexus afm, it allows 25% more air to be metered in, and upgrading to 550cc injectors over the stock 440cc injectors is allowing 25% more fuel, so you arent really tricking the ecu because you have increased the air and fuel in the same percentage, so its VERY reliable... The SAFC2 will allow you to tweak the air fuel curve, its pretty easy to tune...

And like William said, definatly get a good 3" down pipe, and I dont know if I'd go with a 3.5" exhaust for only 400hp, but definately a 3"...

Awesome, I'll get the Lexus AFM. I've been looking into injectors, what brand do you suggest?

I'll start looking into a SAFC2. All this will work great for my build anyway. Thanks for the info Reign_Maker.

 

[s383mmber1]

Awesome, I'll get the Lexus AFM. I've been looking into injectors, what brand do you suggest?

I'll start looking into a SAFC2. All this will work great for my build anyway. Thanks for the info Reign_Maker.

DO NOT get venoms.

RC is the way to go. DO NOT cheap out on your fuel area!

Much research and questions are required

Ill be more than willing to offer as much assistance as ya need!

-William

 

[cadman]

I'll take all the info I can get!! I am new to this. I have mechanical skills, I just have never done something of this scale before. I am a do-it-yourself-er. As a matter of fact, I still have oil under my finger nails from this weekend and pulling the motor.

I just want to do this right. And I love doing research.

 

[Reign_Maker]

I prefer RC Engineering injectors... I have 1000cc RCs now, and they flow between 999cc-1001cc which is fantastic and dead on... Lucas injectors are the next bet...

Stay AWAY from Venom injectors... OMG! Absolute shit quality control, you NEVER know what yur gunna get... You order 550cc inj and half will flow 800cc's and the other half will flow 200cc's... Just worthless...

One of the best parts I found when I modified my first supra was doing one thing at a time, it was so fun to throw a few mods on and drive it... You can really feel the change... Then do another mod or two and drive it... Its a real sense of accomplishment... I would say just plan your build, and take your time to do it correctly...